OS Metrics

List of OS Metrics

System Metrics

  • system.disk.free

  • system.disk.total

  • system.disk.used 

    Type:        gauge, bytes
Description: System disk usage statistics.

  • system.disk.in_use 

    Type:        gauge, percent
Description: System disk usage statistics, percentage.

  • system.io.iops_r

  • system.io.iops_w 

    Type:        counter, integer
Description: Number of reads or writes per sampling window.

  • system.io.kbs_r

  • system.io.kbs_w 

    Type:        counter, kilobytes
Description: Number of kilobytes read or written.

  • system.io.wait_r

  • system.io.wait_w 

    Type:        gauge, milliseconds
Description: Time spent reading from or writing to disk.

  • system.load.1

  • system.load.5

  • system.load.15 

    Type:        gauge, float
Description: Number of processes in the system run queue, averaged over the last 1, 5,
             and 15 min.

  • system.mem.available

  • system.mem.buffered

  • system.mem.cached

  • system.mem.free

  • system.mem.shared

  • system.mem.total

  • system.mem.used 

    Type:        gauge, bytes
Description: Statistics about system memory usage.

  • system.mem.pct_used 

    Type:        gauge, percent
Description: Statistics about system memory usage, percentage.

  • system.net.bytes_rcvd

  • system.net.bytes_sent 

    Type:        counter, bytes
Description: Network I/O statistics. Number of bytes received or sent, per network
             interface.

  • system.net.drops_in.count

  • system.net.drops_out.count 

    Type:        counter, integer
Description: Network I/O statistics. Total number of inbound or outbound packets
             dropped, per network interface.

  • system.net.packets_in.count

  • system.net.packets_out.count 

    Type:        counter, integer
Description: Network I/O statistics. Number of packets received or sent, per network
             interface.

  • system.net.packets_in.error

  • system.net.packets_out.error 

    Type:        counter, integer
Description: Network I/O statistics. Total number of errors while receiving or sending,
             per network interface.

  • system.net.listen_overflows 

    Type:        counter, integer
Description: Number of times the listen queue of a socket overflowed.

  • system.swap.free

  • system.swap.total

  • system.swap.used 

    Type:        gauge, bytes
Description: System swap memory statistics.

  • system.swap.pct_free 

    Type:        gauge, percent
Description: System swap memory statistics, percentage.

Agent Metrics

Note:
Agent metrics are available only if you are using NGINX Amplify Agent.

  • amplify.agent.status 

    Type:        internal, integer
Description: 1 - agent is up, 0 - agent is down.

  • amplify.agent.cpu.system

  • amplify.agent.cpu.user 

    Type:        gauge, percent
Description: CPU utilization percentage observed from the NGINX Amplify Agent process.

  • amplify.agent.mem.rss

  • amplify.agent.mem.vms 

    Type:        gauge, bytes
Description: Memory utilized by the NGINX Amplify Agent process.